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What is RFID card?RFID (radio frequency identification card) is also called contactless IC card or proximity chip card. It consists of a chip and an antenna that are sealed in a card made of standard PVC, ABS PET material or other material without any exposed parts. The read-write process is fulfilled by the radio wave between IC coupled resonator circuits and reader. The RF protocols are ISO/IEC14443 (A /B /C…/F /G), ISO/IEC15693 and ISO/IEC18000-3 etc. Nowadays, there are various RFID card suppliers in this industry.

RFID Cards FeaturesNormally the radio frequency can be LF (low frequency), HF (high frequency) or UHF (ultra high frequency).

Low frequency: 125 - 134 KHz

High frequency: 13.56 MHz

Ultra high frequency: 433 - 869 - 915 MHz

The RFID cards complying with these protocols are called RFID LF cards, RFID HF cards and RFID UHF cards accordingly. Sometimes a RFID composite card sealed with both LF and HF chip/antenna together can work on both LF and HF frequencies.

If you want to know how to identify RFID credit cards, how to check rfid card frequency, or how to tell if credit card has RFID, we can give you the right answers!